Just in case anyone here knows...
I have a greyscale BMP image, basically black text on white background white but with some anti-aliasing introducing more shades of grey. In Paint.NET I want to save this as a PNG, with transparency based on the whiteness... e.g black is opaque, white is fully transparent, so I can place this image on top of other things and the antialiased text blends properly.
I'm sure it can be done but I can't figure out the right way.
I have a greyscale BMP image, basically black text on white background white but with some anti-aliasing introducing more shades of grey. In Paint.NET I want to save this as a PNG, with transparency based on the whiteness... e.g black is opaque, white is fully transparent, so I can place this image on top of other things and the antialiased text blends properly.
I'm sure it can be done but I can't figure out the right way.
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